If you have deleted the related COFILES and DATA files under TRANS directory wrongly for the “Transport Request” then you can RECREATEagain with following procedure…
Go to OS level and find the related COFILES and DATA files under TRANS directory and DELETE them for the TEST procedure.

Now your TRANS\DATA and TRANS\COFILES directories look like shown below

Go to STMS and get your “Transport Request Number” which you want to RECREATE